- Companies
- Installers
- Colchester
- STZ Limited
STZ Limited
- Company number
- 14602815
- Incorporated
- 18 Jan 20233 years trading
- Registered office
- 36 Walnut Tree Way, Tiptree, Colchester, CO5 0NH
- Nature of business
- Other construction installation
STZ Limited is a 3-year-old private limited company registered in Colchester, company number 14602815, one of 113 installation companies (insulation, lifts, shutters and similar) in Colchester. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £10K (-89.6%) on the year before, to £1,195.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £1,195 | £1,475 | £280 | 0 | |
| 31 Jan 2024 | £11K | £14K | £2,694 | 0 |
Where STZ Limited is registered
The registered office is in Colchester (CO5), in the Colchester local authority area, East of England. Show CO5 0NH on a map.
Other trade companies in CO5
- Essex Kar Bodywork LimitedMechanics and garages
- Desmo Lifts LimitedInstallers
- Web Roofing and Property Maintenance LtdRoofers
- Breaking Ground LtdBuilders
- Buildwise Property LimitedFacilities management
- Azeem & Antony LimitedSpecialist contractors
- Blackwater Contracts LtdBuilders
- RMC Electrical Installations LimitedElectricians
What happens if STZ Limited files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 14602815
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 January 2023 (3 years ago)
- Registered office
- 36 Walnut Tree Way, Tiptree, Colchester, CO5 0NH
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 17 January 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Colchester
Other active installation companies (insulation, lifts, shutters and similar) registered in Colchester.
- Tec Construction (East Anglia) Limited2021
- Teebob Ltd2020
- The Big Blue Van Limited2004
- The Extension Company Limited1999
- The Really Safe Flooring Company Limited1999
- Thompson-Smith (Colchester) Limited2011
- TLS Utilities Ltd2024
- TWB Carpentry & Joinery Ltd2020
All installation companies (insulation, lifts, shutters and similar) in Colchester · All trades in Colchester · Installers across the UK
Frequently asked questions
When are STZ Limited's accounts due?
STZ Limited's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is STZ Limited's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is STZ Limited still trading?
STZ Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does STZ Limited do?
STZ Limited is registered under Other construction installation (SIC 43290).
How old is STZ Limited?
STZ Limited was incorporated on 18 January 2023, 3 years ago.
What is the penalty if STZ Limited files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View STZ Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.